Valve



Sept. 11, 1923. A

' H. 'F. SMITH ET ALY VALVE Filed Dec. 16. 1920 ZEN/@2770.75

Patented Sept. 11, 1923.

HARRY F. SMITH ANDTHOMAS CU'RETON,`0F3DAYTO1\T, OHIO,'ASSIGNORS,BYfMESNE ASSIGNMENTS, TO THE GAS RESEARCH COMPANY, :OF DAYTON, OHIO,` A`GORIEORA- i TION OF OHIO.

VALVE.

Application filed December 16, 1920. Seria1`Nof43L'181.

To all whom-t may concern.:

Be it known'that We, HARRY yFgSi'arrH county of Montgomery, and State ofOhio,

have invented certain nevi,T and useful iinprovements in Valves of whichthe following is a full, clear and eXact description.

'This invention relates to valves and more for the controlling of-luidscontaining impurities. l

One of the principal objects ot the invention is to provide a valve ofsuch char# acter that the accumulation of impurities Will not causebinding or sticking 'of the valve parts and Will not interfere with theoperation thereof.

Another obj ect of the invention is topro- ,l

vide a self-cleaning valve.

Other objects andadvantages will be apparent from the description setoutJ below, when taken in connection with the aoco-mpanying drawing.

In the drawing, in Which like characters." of reference designate likeparts throughout the several views thereof, y

Fig. l 1s a sectional view through'a valve constructed in accordanceWith the. present 1%1 of Fig. 2;

2,-2 of Figgl;

Fig 3 is a sectional View along the line 3 3 of Fig. 1;

Fig. 4 is a detail view of the valve disc.`

lIn the handling of iuids containing impurities, such a fluid Jforexample as producer gas, the valves heretofore 'inv general use haveproved somewhat objectionable. Producer gas generally contains tar andlike impurities in varying quantities, and these impurities have atendency to deposit upon projections Within the pipe through which theyare being conveyed. As a result substantial iquantities of impurity willbe deposited in the valves, While the gas is floiving therethrough, andwhen the valves are closed for any substantial. period, as for instanceover night, this tar tends to harden and' to stick or bind the valve so'that frequently it has to be steamed in order to` soften the. tarsuiiiciently to permit of Aits being operated. The valve forming thesubject matter of this invention, otvvhich-a preterredembodim'ent isshovvn in the drafvving, is adapted to 'permitof the handlingl ofproducer gas, and other impurity containing fluids, ',vvithout""the`Iencountering 'of this trouble. l,

lIn' the' drawing the' numeral' 10 designates the valve casing properorI body `rnein'ber, l fa trap 11 being rigidly attached totheparticularly to afvalve especiallyadapted body member byfmeans'loibo-lts 12, the'conf 'tacting surfaces of these two members being such'as' tio-"make a.`"tight, leakproofjoint.

portsl and'l, which' are connected respectivelyto"an"inlet passage 16andan outlet passage `17 opening through this face and connecting the`inlet and outlet pipes fivi'th Ithe'space Withinv lthe trap. Surround-j"ing each ofthe po'rtslliand 15 areribslg ivfhich serveA as the lvalveseat proper. Associated' with the yribszS and, preferably, forming Lcontinuation ythereof are the ribs `2()4 Vwhich also serves as a partof' the valve seat proper." It desired these fribs maybe located thevalve ldisc, and when Iso positioned they' Will serve the same"sefulpurpose as ivlien located and constructedas shown' in 1the'fdi'a'vving.invention, the section being along the line FJtending through thepartition 25ivhich v'separafte'sthelinlet and'outlet passages 16 Fig. 2is a sectional view along the line and 17 -'t'romef'ich otheris acentrally arranged passage 26`in lwhich 'is' rotatably mounted ,thevalve stem 27. Keyed to the,A lower endof the valve stein 27,-'in""such' Wise as to rotate therewith, is a' valve member' or 'disc 30adapted 'to cooperate with fthe`rib:s18`and"20. 'Attachedto the tree fouter end Aof' the Vvalve stem is-'an operating handle 31, by means ofwhich the valve member 30 may be moved Ainto any' desired position.l/Vithin the/outer end of the p'asjsage26 is an `enlargement forreceiving a packing 32 adapted to prevent leakage through this passagealong the valve stem. Located betiveeny the operating handle. 31

andthe glandmi is a spring l34, WhichV -servesthe double purpose otholding the valve member snugly against its seaty and of ,forcing thegland 33 against' the` packing 821 vto .insure proper compression of thepacking material. Y

' Opening from the loiver end of the'y trap 11 is a discharge passa-gecontrolled by means4 of the cock 40. Upon the upper part of the bodymember 10 are a plurality of indicating lugs of any desiredconstruction. One of these lugs is shown generally as 41, but anydesired number and type of lugs may be used. 'Cooperating with theseindicating lugs is an extension 42 carried by the operating handle 31whereby the position of the valve disc may be accurately determined.

As sho-wn in Fig. 4 the valve disc preferably has therethrough one largeport 35, though a plurality of smaller ports may be used if desired.This port is ol' such size that when the disc is properly positioned itwill connect both the inlet and the outlet passages 16 and-17 to thespace within the trap, and thus to each other. And the blank spacebetween the ends of this port is of such dimensions that when properlypositione'd it will close oli? either the passage 16 or 1T, whileleaving the other passage connected with the trap 11. n

In operation of the device the valve disc is normally so positioned thatthe port 35 registers with each of the ports 14 and 15. 1N hen thuspositioned there will be a flow, say of producer gas, through the inletpassage 16 into the trap 11 and thence outwardly through the passage 17.As the gas passes into the trap 11 its velocity ol' How will be sloweddown and as a result more or less ol the impurities within the gas willbe separated out under the action of gravity. l/Vhen it is desired tostop flow of the gas the valve disc may be moved so as to close offeither inlet port 14 or the outlet port 15, the closing of either ofthese ports interrupting the flow through the valve. Ordinarily afterany substantial period of operation there will be an accumulation ofimpurities upon various parts of the valve structure and when the vusualtype of valve is left inl closed position for any length of time theseimpurities will tend torcollect around the valve seat and to hardenthere,

to prevent opening of the valve. In the type of valve construction shownin the drawing, however, any movement of the valve either in opening orclosing tends to wipe the face of the valve clean as it moves across theribs 18 surrounding the inlet and outlet ports. As a consequence when,after a period o1 operating, the valve is moved into closed position itis wiped clean as it moves into such position and the danger of stickingor binding is thus substantially eliminated. n

From time to time it will be desirable to remove from the trapimpurities accumulated therein. These impurities yare ordinarily of suchcharacter that they will not readily drain out. When it is desired to yclean out the trap 11 the valve disc is so po-- sitioned that the outletport 15 is closed and the inlet port is in open communication with thetrap. The coclr 40 is then opened and the pressure of the iluid withinthe inlet pipe acting upon the impurities within the trap will blowthese impurities out.

Vhile this valve is particularly adapted for controlling the ilow ofproducer gas through pipes of comparatively small dimensions, say fromone to three inches, it is by no means thus limited in its applicabilityfor it is capable of general use. rTherefore, while the mechanism hereinshown and described constitutes a preferred form of embodiment of theinvention, it is to be understood that other forms might be adopted, allcoming within the scope of the claims which follow. i

l/Vhat We claim is:

1. In a valve of the character described, a body member having an inletpassage and an outlet passage therein, a trap attached to said bodymember, a valve member mounted upon said body member and within saidtrap, and having a passage therethrough, the construction of the valvebeing such that it may be positioned to connect both the said inlet andthe said outlet passages to the said trap at the same time, or toconnect the inlet passage alone thereto.

2. 1n a valve of the character described, a body member, a dependingtrap attached thereto; an inlet passage within said body member openinginto the trap; an youtlet passage within said body member opening intothe trap; and a valve member associated with said body member and saidtrap and adapted to connect either passage separately, or both passagesat the Same time, to said trap.

3. In a valve of the character described, a body member, a valve seatthereon, a plurality of ports opening through said seats, oneconstituting an inlet and the other an outlet port; cleaning ribssurrounding said ports; a trap attached to said body member into whichboth said ports open; and a valve member associated with said valveseat, and so constructed as to connect either or both of said ports tosaid trap.

4. In a valve of the character described, a body member, a valve seatthereon, ports opening through said seat; cleaning ribs surrounding saidports and serving as a valve seat proper; and a rotary valve membercooperating with said ports and cleaning ribs, the construction beingsuch that upon rotary movement of the valve said ribs wipe the surfacesthereof to remove deposited impurities, and the like, therefrom.'

5. In a valve of the character described, a body member, a trapassociated therewith; an inlet passage within said body member openinginto said trap; an outlet within said body member opening from saidtrap; a discharge opening in said trap; and a valve member controllingsaid inlet and outlet passages, the construction being such that bothpassages may be Connected to said trap, or the inlet passage aloneconnected thereto, whereby the pressure of the fluid Within said inletpassage may be utilized to blow out said trap.

HAHHY F. SMITH. THOMAS oUHEToN.

Witness T. Gr. PLUMMER.

